Home / 221,733,356.86-305,994,015.11-122,620,772.89

Finding the Fourth Proportional to 221,733,356.86, 305,994,015.11 and 122,620,772.89

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Solution

The fourth proportional to 221,733,356.86, 305,994,015.11 and 122,620,772.89 is: 169,217,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,733,356.86 : 305,994,015.11 = 122,620,772.89 : x
  2. Step 2: Convert to fraction form
    221,733,356.86/305,994,015.11 = 122,620,772.89/x
  3. Step 3: Cross multiply
    221,733,356.86x = 305,994,015.11 × 122,620,772.89
  4. Step 4: Simplify right side
    221,733,356.86x = 37,521,222,632,329,736
  5. Step 5: Solve for x
    x = 37,521,222,632,329,736/221,733,356.86
  6. Step 6: Final answer
    x = 169,217,763.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.